Open Data APIs let you add open data-powered capabilities without building from scratch. Every entry below is profiled with trust signals — pricing model, authentication requirements, CORS support, rate limits, and live uptime checks — so you can compare options and pick production-safe choices instead of guessing from a link list.
| API | Pricing | Auth | CORS | Health | |
|---|---|---|---|---|---|
| EU BON UTIS API The Unified Taxonomic Information Service (UTIS) is the taxonomic backbone for the EU-BON project | Unknown | Unknown | Yes | Profile | |
| EVEMarketer Marketstat API EVEMarketer Marketstat API is almost compatible with EVE-Central's Marketstat API. | Unknown | Unknown | Yes | Profile | |
| Enigma Public Broadest collection of public data | Free | API Key | No | Profile | |
| FORTNITE REST API REST API about Fortnite game | Unknown | Unknown | Yes | Profile | |
| Figshare API Figshare apiv2. Using Swagger 2.0 | Unknown | Unknown | Yes | Profile | |
| FireBrowse Beta API A simple and elegant way to explore cancer data | Unknown | Unknown | Yes | Profile | |
| French Address Search Address search via the French Government | Free | No | No | Profile | |
| GENESIS Federal Statistical Office Germany | Free | OAuth | No | Profile | |
| GSMTasks Project API The GSMtasks API is a RESTful web service for developers to programmatically interact with GSMtasks data, real-time delivery and task management and route optimization functionality. | Paid | Unknown | Yes | Profile | |
| Generate Link Preview (including checking for malicious links) Fetches metadata from any URL passed to it, including Open Graph tags. | Free | API Key | No | Profile | |
| GererMesAffaires {REST:API} API Sécurisez vos données en interfaçant votre logiciel métier avec le service en ligne GererMesAffaires | Unknown | Unknown | Yes | Profile | |
| GoToTraining API The GoToTraining API enables developers to use the stable and robust GoToTraining functionality as the basis for online trainings in a proprietary learning management system. The GoToTraining APIs provide the ability to | Unknown | OAuth | Yes | Profile | |
| Graph Countries Country-related data like currencies, languages, flags, regions+subregions and bordering countries | Free | No | No | Profile | |
| Highways England API Highways England API public API. | Unknown | Unknown | Yes | Profile | |
| IPQualityScore API IPQualityScore API public API. | Unknown | Unknown | Yes | Profile | |
| Icelandic APIs Collection of open APIs delivering services and data about Iceland. Includes weather, earthquakes, road conditions, and more. | Free | No | Yes | Profile | |
| IllumiDesk API IllumiDesk API public API. | Freemium | Unknown | Yes | Profile | |
| Importer-Exporter Details API The Importer-Exporter Code (IEC), issued by Directorate General of Foreign Trade (DGFT), is a key business identification number which is mandatory for Exports or Imports. This API can be used to get details of a importe | Unknown | Unknown | Yes | Profile | |
| Increase API Increase API public API. | Paid | Unknown | Yes | Profile | |
| InfraNode API Unified German city open data: weather, air quality, EV chargers, transit, demographics | Unknown | API Key | Unknown | Profile | |
| Joshua Project People groups of the world with the fewest followers of Christ | Free | API Key | Yes | Profile | |
| Kaggle Create and interact with Datasets, Notebooks, and connect with Kaggle | Free | API Key | No | Profile | |
| LinkPreview Get JSON formatted summary with title, description and preview image for any requested URL | Free | API Key | No | Profile | |
| Lowy Asia Power Index Get measure resources and influence to rank the relative power of states in Asia | Free | No | No | Profile | |
| Lucidtech API Lucidtech API public API. | Paid | Unknown | Yes | Profile | |
| Medcorder Nearby Doctor API Returns doctors near a client given a lat/lon and autocomplete text. | Unknown | Unknown | Yes | Profile | |
| Meilisearch v1.0 API Meilisearch v1.0 API public API. | Paid | Unknown | Yes | Profile | |
| Microlink.io Extract structured data from any website | Free | No | Yes | Profile | |
| Nasdaq Data Link Stock market data | Free | API Key | No | Profile | |
| NeoWs - (Near Earth Object Web Service) API A web service for near earth objects. All the data is from the <a href="http://neo.jpl.nasa.gov/" target="_blank">NASA JPL Asteroid team</a>. NeoWs is proud to power AsteroidTracker on <a href="https://itunes.apple.com/u | Unknown | API Key | Yes | Profile | |
| Nobel Prize Open data about nobel prizes and events | Free | No | No | Profile | |
| Open Data Minneapolis Spatial (GIS) and non-spatial city data for Minneapolis | Free | No | No | Profile | |
| OpenChannel Market API OpenChannel Market API public API. | Unknown | Unknown | Yes | Profile | |
| OpenCorporates Data on corporate entities and directors in many countries | Free | API Key | No | Profile | |
| OpenSanctions Data on international sanctions, crime and politically exposed persons | Free | No | No | Profile | |
| OrgHunter API Get the latest IRS data and most up to date charity information for your website or application | Unknown | API Key | Yes | Profile | |
| REST Countries Get information about countries via a RESTful API | Free | No | No | Profile | |
| Recreation Information Database Recreational areas, federal lands, historic sites, museums, and other attractions/resources(US) | Free | API Key | No | Profile | |
| Refuge Restrooms API REFUGE is a web application that seeks to provide safe restroom access for transgender, intersex, and gender nonconforming individuals. | Unknown | Unknown | Yes | Profile | |
| Rocket Services API An Orchestration Layer that takes ISL services and packages them in a more targeted way for front-end applications. This in turn makes client integration easier and reduces the complexity and size of front-end applicatio | Unknown | Unknown | Yes | Profile | |
| SchoolDigger API V1 API Get detailed data on over 120,000 schools and 18,500 districts in the U.S. | Paid | Unknown | Yes | Profile | |
| Scoop.it Content Curation Service | Free | API Key | No | Profile | |
| SimpliVPNAPI SimpliVPNAPI public API. | Paid | Unknown | Yes | Profile | |
| SlideRoom API V2 API SlideRoom provides a RESTful API for exporting data out of your organizations SlideRoom account. | Unknown | Unknown | Yes | Profile | |
| Socrata Access to Open Data from Governments, Non-profits and NGOs around the world | Free | OAuth | No | Profile | |
| Sofiaplan Access to urban research data for the Bulgarian capital Sofia | Free | No | No | Profile | |
| Solar VPS API This is the Solar VPS Public API. You can find more at http://www.solarvps.com | Unknown | API Key | Yes | Profile | |
| Stellastra API Stellastra makes it easy to get reviews for your cybersecurity solution in real-time with its platform-agnostic REST API. | Unknown | Unknown | Yes | Profile | |
| TechPort API TechPort RESTful API | Unknown | Unknown | Yes | Profile | |
| Tl Api Azurewebsites API Web API for TL mobile and web app | Unknown | Unknown | Yes | Profile | |
| UPC database More than 1.5 million barcode numbers from all around the world | Free | API Key | No | Profile | |
| Udemy Coupons, Courses & Instructors Data Retrieve Udemy courses, coupons, instructors, and metadata | Free | API Key | No | Profile | |
| Umeå Open Data Open data of the city Umeå in northern Sweden | Free | No | No | Profile | |
| UniCourt Enterprise APIs API <button><a href="/enterpriseapi/download/UniCourt-Enterprise-API-Spec.yaml" >Download UniCourt Enterprise APIs Specification</a></button> | Unknown | Unknown | Yes | Profile | |
| UniDb Data that helps people gain useful insight into universities in the United Kingdom | Free | API Key | No | Profile | |
| Universities List University names, countries and domains | Free | No | No | Profile | |
| University of Oslo Courses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway) | Free | No | Yes | Profile | |
| Urban Observatory The largest set of publicly available real time urban data in the UK | Free | No | No | Profile | |
| Vonage Integration Suite API The Vonage Integration Suite API enables call control and webhooks for call events. Your application must subscribe to the VonageIntegrationSuite API suite to use this API. | Unknown | Unknown | Yes | Profile | |
| WeGA API ⚠️<b>DEPRECATION WARNING</b>⚠️<br/>This version of the WeGA API specification is outdated and superseded by [version 1.1.0](https://weber-gesamtausgabe.de/api/v1/openapi.json). <br/> <br/> For feedback or requests about | Unknown | Unknown | Yes | Profile | |
| WikiPathways Webservices API WikiPathways Webservices API public API. | Unknown | Unknown | Yes | Profile | |
| Wikidata Collaboratively edited knowledge base operated by the Wikimedia Foundation | Free | OAuth | No | Profile | |
| Wikipedia Mediawiki Encyclopedia | Free | No | No | Profile | |
| Yelp Find Local Business | Free | OAuth | No | Profile | |
| administrative-divisons-db Get all administrative divisions of a country | Free | No | No | Profile | |
| bridgedb webservices API bridgedb webservices API public API. | Unknown | Unknown | Yes | Profile | |
| clickup20 API Polls is a simple API allowing consumers to view polls and vote in them. | Unknown | Unknown | Yes | Profile | |
| doqs.dev | PDF filling API doqs.dev | PDF filling API public API. | Unknown | Unknown | Yes | Profile | |
| i6eal Open AI Data API Open datasets on AI policy, regulation and public-sector adoption in Germany and the EU | Unknown | Unknown | Yes | Profile | |
| openAFRICA Large datasets repository of African open data | Free | No | No | Profile | |
| opendatasoft API opendatasoft API public API. | Unknown | Unknown | Yes | Profile |
Start with pricing and auth: free tiers and no-auth APIs are fastest to prototype with. Then check CORS if your app calls the API from the browser, and health before you commit — a great open data API that's been down for a week will block your launch. Each profile below shows all of these signals plus rate limits where documented.